samsung-sm8650/android_kernel_samsung_sm8650-modules
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disp: msm: sde: remove unused functions from sde code

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Cleanup unused functions from all modules in sde driver.

Change-Id: Ia0e72ab9c281b4200a63ce35bf184e83fe1db5d2
Signed-off-by: Veera Sundaram Sankaran <veeras@codeaurora.org>
This commit is contained in:
Veera Sundaram Sankaran
2021-03-23 12:25:38 -07:00
committed by Gerrit - the friendly Code Review server
부모 da71fc99c4
커밋 506508e1cd
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79
msm/sde/sde_hw_blk.c
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@@ -1,6 +1,6 @@
// SPDX-License-Identifier: GPL-2.0-only
/*
* Copyright (c) 2017-2019, The Linux Foundation. All rights reserved.
* Copyright (c) 2017-2019, 2021, The Linux Foundation. All rights reserved.
*/
#define pr_fmt(fmt) "[drm:%s:%d] " fmt, __func__, __LINE__
@@ -69,80 +69,3 @@ void sde_hw_blk_destroy(struct sde_hw_blk *hw_blk)
mutex_unlock(&sde_hw_blk_lock);
}
/**
* sde_hw_blk_get - get hw_blk from free pool
* @hw_blk: if specified, increment reference count only
* @type: if hw_blk is not specified, allocate the next available of this type
* @id: if specified (>= 0), allocate the given instance of the above type
* return: pointer to hw block object
*/
struct sde_hw_blk *sde_hw_blk_get(struct sde_hw_blk *hw_blk, u32 type, int id)
{
struct sde_hw_blk *curr;
int rc, refcount;
if (!hw_blk) {
mutex_lock(&sde_hw_blk_lock);
list_for_each_entry(curr, &sde_hw_blk_list, list) {
if ((curr->type != type) ||
(id >= 0 && curr->id != id) ||
(id < 0 &&
atomic_read(&curr->refcount)))
continue;
hw_blk = curr;
break;
}
mutex_unlock(&sde_hw_blk_lock);
}
if (!hw_blk) {
pr_debug("no hw_blk:%d\n", type);
return NULL;
}
refcount = atomic_inc_return(&hw_blk->refcount);
if (refcount == 1 && hw_blk->ops.start) {
rc = hw_blk->ops.start(hw_blk);
if (rc) {
pr_err("failed to start hw_blk:%d rc:%d\n", type, rc);
goto error_start;
}
}
pr_debug("hw_blk:%d.%d refcount:%d\n", hw_blk->type,
hw_blk->id, refcount);
return hw_blk;
error_start:
sde_hw_blk_put(hw_blk);
return ERR_PTR(rc);
}
/**
* sde_hw_blk_put - put hw_blk to free pool if decremented refcount is zero
* @hw_blk: hw block to be freed
* @free_blk: function to be called when reference count goes to zero
*/
void sde_hw_blk_put(struct sde_hw_blk *hw_blk)
{
if (!hw_blk) {
pr_err("invalid parameters\n");
return;
}
pr_debug("hw_blk:%d.%d refcount:%d\n", hw_blk->type, hw_blk->id,
atomic_read(&hw_blk->refcount));
if (!atomic_read(&hw_blk->refcount)) {
pr_err("hw_blk:%d.%d invalid put\n", hw_blk->type, hw_blk->id);
return;
}
if (atomic_dec_return(&hw_blk->refcount))
return;
if (hw_blk->ops.stop)
hw_blk->ops.stop(hw_blk);
}